SUMMARY OF SEQUENCE NUMBER 400010
SUMMARY OF SEQUENCE NUMBER 400010
Title: BLACK HOLE EVENT HORIZONS
Observer: MURRAY
Subject Category: BH and NS Binaries
Seq: 400010 ObsId: 00097
Long-term Plan bin: 25-Apr-2000
ABSTRACT
Comparisons of the luminosities of Black Hole (BH) and Neutron Star X-ray Nova (XN) provide the first direct observational evidence that black holes have event horizons. Central to the interpretation of this evidence is the understanding of the accretion flow in X-ray Nova as Advection Dominated Accretion Flows (ADAFs) when the systems are "quiescent". These observations will allow qualitative improvement in our ability to test the ADAF (or any other) model by providing the second high-quality spectrum of a quiescent BHXN, and the first high-quality spectrum of a short-period BHXN.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| V404 CYG |
306.015833 | 33.867806 |
10.00000 |
ACIS-S |
NONE |
GTO |
no |
no |
no |
no |
no |
5 |
IMAGES
(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)
PARAMETERS
Obscat Parameters
